Many scientists believe that stuttering results from incomplete lateralization of brain functions during the development of speech. Therefore, I assume in this paper that stuttering may be caused by irregular lateralization of auditory functions. In my research, in addition to the dichotic listening test. I have also used A. Tomatis®‘ audiolaterometer to evaluate auditory lateralisation. The study was performed on 45 stuttering subjects. The use of audiolaterometer revealed left-sided auditory lateralisation in 12 cases, indefinite lateralisation in 20 and right-sided lateralisation in 13 cases.
